If you find some there's one thing to check and one to buy before installing. It's very common for the end that connects to the exhaust manifold to not be perfectly flat. It then burns through the gasket and you have a leak. Check and grind if necessary. There's a post on here about an alternative gasket It's got a metal center with a ring that seals better than a flat gasket. I bought those and they work real well. Been a couple of years with no leaks.
